Asteroid Dust (image) American Association for the Advancement of Science Share Print E-Mail Caption An Itokawa dust particle is viewed under optical microscope. The particle is transparent, but contains small black inclusions. The surface of this particle is altered by space weathering. Credit [Image © JAXA/ISIS] Usage Restrictions May be used only with permission Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.